Headlight



.a more intense beam of light in combina-teilen Elie tjalk the raysf1-0m he Hgh@ Application To all vwlmi/1, 1i ifi-ay concer/i.: e itknown that @Hannan ifi". Dani citizen of the United States, welding ai;Slab cago, in the county of Coole and State oi .l fia-fle its 'l aIllinois, llave invented a certain new and aged in useful improvement inHeadlights., or '3` n (inl which the followinfr is a speeiiication. Myinvention relates to headlights and particularly to those adapted forwith w locomotive engines. 'llln'ongli long usage the practice of makinglocomotive iiea llights of approximately eighteen inches in diameter hasbecome fined in the ait. Were a locomotive headlight to be made of nineinches in diameter although it might give sufficient light foi allnee/eeen j* Join posee, it would not serve, ae might l oil il?. reconized as a locomotive headlight. Se lirm y fixed has this idea becomethat it has been found impossible to depart inatei'iaily from thediametei of eighteen inches in mal;- i'n locomotive headlights,

ith the development oi iiigliei poweiefi `lights it llas been foundunneceseay ann i v, diilcult to have a higher power iueain ci eovreatdiameter, anni it has become desifaloie om every point of View tohave the beam ect/oi. B la eeraiily alena and smaller and yet foi* tlie"eaeons above ont coated n ...n feilectin material cnvtlie nach? linedit is not possible toA reduce the total, wlieieae the reflector j inailbe a reflecting (fsie of the lighted area of the headlight. it surfacedeveloped on apdplied to tiie inistl-iei'efore one of the objects of myinvenrei'ioif the casinge ci a separateieiiector tion to produce aheadlight which will yhave asuilficient enlarged illuminated area andThe nee and operation ofmvinventien aire' which in additin will have asin-allen and as follows:

tliereyvith. l attain this 'regelt-by a coin soniee are gatiiaecl by.une email powerful bination of a smalll exceedingly eiicient ci"reelecto? and :eeleeted directly' ioiwai'i'i bi'iht reectoi' Workingwith a 'small lens tlnongiz'tlie lens and are by il; concentratef .an alarge lesefeicient or dnller reileetoi' and peni gerliin a naifzow 'inli power beam u 'my 'inet pari. oi the lignt which does 40 'and plainglas'eeoveing the entire front of of light.

the illuminated area. My invention lsvillus nozliall apen tidesinallreleetor oi which trated more or less diagrammatlcally inthefalling upon it ie not reflected through the accompanyingillustrations,wherelniene, is reiiecced. from the larger porcelainFigure 1` 1s' a front elevation; and reiiector in the main casing' andan pensee out Figure 2 is avel'tical section on the line tlnonggn theplain glass iiont cover. Tinne 1W z-z of Figui-e l. the lieaellin'litgives a clearly illuminatefl sur* Like parts are indicated by likecharacters face .of diameter of eighteen inches and throughout Y also apowei'ii-ii concentrated narrow beam A. isa headlight casing,enclosing'and suo of light, in this casse seine eight inches in fioporting the bulk of the other headlight diameteif source. 105

c parts. It has the enlaigecl 'forward rim A1 .l @all the centfalreiiectoi* the piiinarv adapted .to receive a front glass assembly.reiiectoi'anl' l the exteiioi or annular iifieeoi' Its inner surface islined with oicelain as the eeeonfii f reflector for the iii-st is inatA2A and thus com )rises a Teflector., Els .is .tenflefl to eine lieeti-one' beam of liebt which q n m t an inner supporting frame integralwith the will illuminate the track fai' in advance er@ lll thelocomotive, While the second is intended to add to the nearbyillumination and also to give the light the appearance of being of theusual locomotive headlight size. I have not shown many of the partswhich would neces- Asarily be applied to the structure because they formno part of this invention, for example: in the casing there is leftvsutlicient l room at the bottom for the insertion of a proper supportand adjusting device for the electric lamp-so that it can be focused.The

arrangement is, of course, particularly applicable for use with electriclamps though I would not wish to be confined to that use.

The light from the lamp passes directly to the lens and also to theseconda-ry reflector and primary reflector. The light is largely 'caughtin the primary reflector and reflectedreflector and is thence reflectedthrough the plain glass. I claimil. In a headlight, the combination of aprimary reflector with a secondary reflector surrounding 1t, the primaryrellector adapted to project a beam of light of high inten.

sity, the secondaryrelector adapted to project a surrounding bea-m ofrelatively low intensity.

2. In a headlight, the combination of a primary reflector with asecondary reflector, and a lens in front of the primary reflector only,said lens adapted to project light from said primary reflector in a.beam of small diameter and high intensity, said secondary reflectoradapted to project a surrounding beam of relatively large diameter andlow intcnsity.-

3. In a headlight, the combination'of a primary reflector with asecondary reflector, and a lens in front of the primary reflector only,said primary reflector adapted to project its light only through saidlens, .the secondary reilector adapted to project 'no light through saidlens.

In testimony whereof, I affix my Signature in the presence of twowitnesses this 17th day of July, 19l9.

CHARLES W. DAKF Witnesses: l n

EDrrH L, PORTER, MiLnnnD H. MACKE.

